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Add a basic tiffinfo utility

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Also fix a few TIFF-related issues.
This commit is contained in:
Přemysl Eric Janouch
2021-12-11 22:51:52 +01:00
parent 1bd5cb02e7
commit 121c63e35e
4 changed files with 87 additions and 5 deletions
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10
tools/info.h
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@@ -551,14 +551,15 @@ static struct tiff_entry tiff_entries[] = {
{}
}},
{"ReferenceBlackWhite", 532, NULL},
{"XMP", 700, NULL}, // Adobe XMP Specification Part 3 Table 12/13/39
{"ImageID", 32781, NULL}, // Adobe PageMaker 6.0 TIFF Technical Notes
{"Copyright", 33432, NULL},
// TODO(p): Extract IPTC DataSets, like we do directly with PSIRs.
{"IPTC", 33723, NULL}, // Adobe XMP Specification Part 3 Table 12/39
// TODO(p): Extract PSIRs, like we do directly with the JPEG segment.
{"Photoshop", 34377, NULL}, // Adobe XMP Specification Part 3 Table 12/39
{"Exif IFD Pointer", 34665, NULL}, // Exif 2.3
{"GPS Info IFD Pointer", 34853, NULL}, // Exif 2.3
// TODO(p): Extract IPTC DataSets, like we do directly with PSIRs.
{"IPTC", 37723, NULL}, // Adobe XMP Specification Part 3 Table 12/39
{"ImageSourceData", 37724, NULL}, // Adobe Photoshop TIFF Technical Notes
{}
};
@@ -886,8 +887,9 @@ parse_exif_subifds(struct tiffer *T, const struct tiffer_entry *entry,
offset < 0 || offset > UINT32_MAX || !tiffer_subifd(T, offset, &subT))
return jv_null();
// The chain should correspond to the values in the entry,
// we are not going to verify it.
// The chain should correspond to the values in the entry
// (TIFF Technical Note 1), we are not going to verify it.
// Note that Nikon NEFs do not follow this rule.
jv a = jv_array();
do a = jv_array_append(a, parse_exif_ifd(&subT, info));
while (tiffer_next_ifd(&subT));